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Below are shown a dot plot and summary statistics for a random sample of 34 shower heads.The measurements are maximum flow rates (in gallons per minute)at pressure of 80 pounds per square inch.Use the data to illustrate the difference between the two alternative definitions of "outlier," and make any other comments you feel are relevant.Note: Trim Mean removes the smallest 5 percent and the largest 5 percent of the values.
Interval Estimate
An estimate of a population parameter that specifies a range of possible values within which the parameter is expected to lie, often expressed with a level of confidence.
Mean Ages
The average age of individuals in a population or sample, calculated by summing their ages and dividing by the number of individuals.
Full-time Students
Individuals enrolled in an educational institution who take the majority of coursework offered or meet a minimum number of credit hours, as defined by the institution, to be considered as attending full-time.
Degrees of Freedom
The sum of distinct quantities or values applicable to a statistical distribution.
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